CraterMA always gets stuck on the weekend, or it's BowlMA. The issue with these maps is that the others get rolled in a day, these stay up for 3-5 days. Thus making it stale for players when they constantly only play the bigger maps when they have time to play.
While it's certainly more about base layout, bigger maps still naturally scatter the players as there is no "guide to action" as I like to say. For example, you don't get more points for attacking/defending a certain area. This incentivizes players to fight in a specific area (if they want to). 20k b17s as a target on the map is atleast a 25 minute sortie to be patient enough to set up an attack. Flying 5-10 min to a base to Jabo or fight with one or 2 red dots is fun, but gets old after a couple, especially if those fighters don't want to play. Condensing the action points is where the best fights are going to be and what would bring players the more thrilling experience. Can't tell you how many times I log in and then log right back out because there is 1 or 2 red dots on a huge map at different bases and its just not even worth it for me to roll.